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Finding the Fourth Proportional to 1,029.02, 1,543.44 and 335.72

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Solution

The fourth proportional to 1,029.02, 1,543.44 and 335.72 is: 503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.02 : 1,543.44 = 335.72 : x
  2. Step 2: Convert to fraction form
    1,029.02/1,543.44 = 335.72/x
  3. Step 3: Cross multiply
    1,029.02x = 1,543.44 × 335.72
  4. Step 4: Simplify right side
    1,029.02x = 518,163.68
  5. Step 5: Solve for x
    x = 518,163.68/1,029.02
  6. Step 6: Final answer
    x = 503.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.